Overview

overview

10

Static

static

3

tmpt7adq8_c.exe

windows10-ltsc_2021-x64

10

tmpt7adq8_c.exe

windows10-2004-x64

10

tmpt7adq8_c.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/05/2026, 14:48

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General

  • Target
    tmpt7adq8_c.exe
  • Size 556KB
  • Sample260522-r6d2saev4l
  • SHA256 4f2e79bff34a37383bcc555b0ca392660d4f2354ce6d0fd1ed4146989745f391
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoverypykspapersistenceprivilege_escalationtrojanworm

Malware Config

Signatures

  • Family: Pykspa

    Pykspa is a worm spreads via Skype uses DGA and it's written in C++.

    wormpykspa
  • Detect Pykspa worm 2 IoCs
    worm
  • Modifies WinLogon for persistence 2 TTPs 6 IoCs
    persistence
  • UAC bypass 3 TTPs 15 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 35 IoCs
    persistence
  • Disables RegEdit via registry modification 6 IoCs
    defense_evasion
  • Checks computer location settings 2 TTPs 8 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 28 IoCs
  • Impair Defenses: Safe Mode Boot 1 TTPs 6 IoCs
    defense_evasion
  • Adds Run key to start application 2 TTPs 64 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 12 IoCs
    defense_evasiontrojan
  • Hijack Execution Flow: Executable Installer File Permissions Weakness 1 TTPs 3 IoCs

    Possible Turn off User Account Control's privilege elevation for standard users.

    defense_evasionpersistenceprivilege_escalation
  • Looks up external IP address via web service 7 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 46 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 46 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 18 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • System policy modification 1 TTPs 42 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpt7adq8_c.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpt7adq8_c.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\users\admin\appdata\local\temp\tmpt7adq8_c.exe*"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Hijack Execution Flow: Executable Installer File Permissions Weakness
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:740
      • C:\Users\Admin\AppData\Local\Temp\ostckq.exe
        "C:\Users\Admin\AppData\Local\Temp\ostckq.exe" "-C:\Users\Admin\AppData\Local\Temp\aozskaogrbmaokrn.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Impair Defenses: Safe Mode Boot
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops autorun.inf file
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • System policy modification
        PID:1432
      • C:\Users\Admin\AppData\Local\Temp\ostckq.exe
        "C:\Users\Admin\AppData\Local\Temp\ostckq.exe" "-C:\Users\Admin\AppData\Local\Temp\aozskaogrbmaokrn.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System policy modification
        PID:2004
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\users\admin\appdata\local\temp\tmpt7adq8_c.exe"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:2184
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:536
  • C:\Users\Admin\AppData\Local\Temp\bsgcxqhcqdrizyihtmd.exe
    C:\Users\Admin\AppData\Local\Temp\bsgcxqhcqdrizyihtmd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:404
  • C:\Windows\dwmkhcvsixngzamnbwpfd.exe
    dwmkhcvsixngzamnbwpfd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3760
  • C:\Windows\ogvsoiawlzogyyjjwqix.exe
    ogvsoiawlzogyyjjwqix.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4656
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\ogvsoiawlzogyyjjwqix.exe*."
      2⤵
      • Executes dropped EXE
      PID:2044
  • C:\Windows\qgtoiaqkxjwmcajhsk.exe
    qgtoiaqkxjwmcajhsk.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3188
  • C:\Windows\aozskaogrbmaokrn.exe
    aozskaogrbmaokrn.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4832
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\aozskaogrbmaokrn.exe*."
      2⤵
      • Executes dropped EXE
      PID:4888
  • C:\Users\Admin\AppData\Local\Temp\hwicvmbugrdshemjt.exe
    C:\Users\Admin\AppData\Local\Temp\hwicvmbugrdshemjt.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2736
  • C:\Windows\bsgcxqhcqdrizyihtmd.exe
    bsgcxqhcqdrizyihtmd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1748
  • C:\Windows\bsgcxqhcqdrizyihtmd.exe
    bsgcxqhcqdrizyihtmd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4984
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\bsgcxqhcqdrizyihtmd.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:2948
  • C:\Windows\aozskaogrbmaokrn.exe
    aozskaogrbmaokrn.exe
    1⤵
    • Executes dropped EXE
    PID:3040
  • C:\Windows\hwicvmbugrdshemjt.exe
    hwicvmbugrdshemjt.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3076
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\hwicvmbugrdshemjt.exe*."
      2⤵
      • Executes dropped EXE
      PID:4876
  • C:\Users\Admin\AppData\Local\Temp\qgtoiaqkxjwmcajhsk.exe
    C:\Users\Admin\AppData\Local\Temp\qgtoiaqkxjwmcajhsk.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2128
  • C:\Users\Admin\AppData\Local\Temp\ogvsoiawlzogyyjjwqix.exe
    C:\Users\Admin\AppData\Local\Temp\ogvsoiawlzogyyjjwqix.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4784
  • C:\Windows\ogvsoiawlzogyyjjwqix.exe
    ogvsoiawlzogyyjjwqix.exe
    1⤵
    • Executes dropped EXE
    PID:2204
  • C:\Windows\qgtoiaqkxjwmcajhsk.exe
    qgtoiaqkxjwmcajhsk.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\qgtoiaqkxjwmcajhsk.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:752
  • C:\Windows\hwicvmbugrdshemjt.exe
    hwicvmbugrdshemjt.exe
    1⤵
    • Executes dropped EXE
    PID:1912
  • C:\Windows\dwmkhcvsixngzamnbwpfd.exe
    dwmkhcvsixngzamnbwpfd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:452
    • C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
      "C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe" "c:\windows\dwmkhcvsixngzamnbwpfd.exe*."
      2⤵
      • Executes dropped EXE
      PID:3524
  • C:\Users\Admin\AppData\Local\Temp\aozskaogrbmaokrn.exe
    C:\Users\Admin\AppData\Local\Temp\aozskaogrbmaokrn.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4128
  • C:\Users\Admin\AppData\Local\Temp\dwmkhcvsixngzamnbwpfd.exe
    C:\Users\Admin\AppData\Local\Temp\dwmkhcvsixngzamnbwpfd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3760

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Replication Through Removable Media

        1
        T1091

        Execution

        Persistence

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Privilege Escalation

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Defense Evasion

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Impair Defenses

        2
        T1562

        Disable or Modify Tools

        1
        T1562.001

        Safe Mode Boot

        1
        T1562.009

        Modify Registry

        5
        T1112

        Credential Access

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        3
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Replication Through Removable Media

        1
        T1091

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        feaehihkgbxwvcubvwvrvyz.bxs
        • Path C:\Program Files (x86)\feaehihkgbxwvcubvwvrvyz.bxs
        • Size 272B
        • SHA256 df8b329edc5c37157205cfdc6ee8fe985a059a4d80a89f318c2d1248e25e0a87
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        feaehihkgbxwvcubvwvrvyz.bxs
        • Path C:\Program Files (x86)\feaehihkgbxwvcubvwvrvyz.bxs
        • Size 272B
        • SHA256 c7c559c23a68b26a3471f4da47b32077534442d124b5e3fff5d7ae95f79fcd94
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        feaehihkgbxwvcubvwvrvyz.bxs
        • Path C:\Program Files (x86)\feaehihkgbxwvcubvwvrvyz.bxs
        • Size 272B
        • SHA256 e66196589c09e374515f30c30bf98233c625aaffd3291db89ebc48c594810ae7
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ioxgxzqusyh.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ioxgxzqusyh.exe
        • Size 320KB
        • SHA256 0cc02d34d5fd4cf892fed282f98c1ad3e7dd6159a8877ae5c46d3f834ed36060
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ostckq.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ostckq.exe
        • Size 704KB
        • SHA256 d2bf76777bc05f2614838e338263bff7bec1772cf96a31eea8311a5f13c32830
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        feaehihkgbxwvcubvwvrvyz.bxs
        • Path C:\Users\Admin\AppData\Local\feaehihkgbxwvcubvwvrvyz.bxs
        • Size 272B
        • SHA256 6899a024d714d0a428ce75432eeee6c932f0d6f75508a8d256977edd4cc67ae4
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        scjymyiwdjqakcfxcoyfuiueszfmwgybty.ubq
        • Path C:\Users\Admin\AppData\Local\scjymyiwdjqakcfxcoyfuiueszfmwgybty.ubq
        • Size 3KB
        • SHA256 269239fa30bb3c2d082628342f22e08dcece4fef8f07a0abd7878c636dd3f712
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        qgtoiaqkxjwmcajhsk.exe
        • Path C:\Windows\SysWOW64\qgtoiaqkxjwmcajhsk.exe
        • Size 556KB
        • SHA256 4f2e79bff34a37383bcc555b0ca392660d4f2354ce6d0fd1ed4146989745f391
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download